The characteristics of NBR vulcanizates depend primarily on the acrylonitrile content of the nitrile rubber used and on the type and quantity of plasticizer. In general, however, it can be said that NBR vulcanizates have a good resistance to gasoline, oils and mineral greases, but are poorly resistant to aging. The resistance level of natural rubber can be achieved through the addition of reinforcing fillers.
Good resistance to:
Average resistance to:
Not resistant to:
NBR vulcanizates are used wherever rubber articles with a high resistance to benzene or mineral oils are required. Articles for which these characteristics are often required include gaskets, membranes, tubes, cylinder coatings, conveyor belts for fatty foods, shoe soles, gloves, cable coatings, foam rubber, hard rubber coatings, and closures for cans.